CN102695277A - Wireless communication system and wireless communication method - Google Patents
Wireless communication system and wireless communication method Download PDFInfo
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- CN102695277A CN102695277A CN2012101473696A CN201210147369A CN102695277A CN 102695277 A CN102695277 A CN 102695277A CN 2012101473696 A CN2012101473696 A CN 2012101473696A CN 201210147369 A CN201210147369 A CN 201210147369A CN 102695277 A CN102695277 A CN 102695277A
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Abstract
The invention provides a wireless communication system and a wireless communication method; mobile stations can process real-time communication without damaging data reliability; a communication judging unit (1a) of a wireless communication device (1) is capable of judging whether communication requests of the mobile stations (2a-2c) from shared wireless resource for processing wireless communication and communication setting information from an upper device (3) comprise real-time communication request information; when the communication requests and the communication setting information comprise the real-time communication request information, a wireless resource ensuring unit (1b) always or periodically ensure wireless resource specifically to the mobile stations (2a-2c).
Description
The application is that the original bill application number is the dividing an application of application for a patent for invention (international application no: PCT/JP2006/321886, the applying date: on November 01st, 2006, denomination of invention: radio communication device and wireless communications method) of No.200680056183.2.
Technical field
The present invention relates to radio communication device and wireless communications method, particularly carry out the radio communication device and the wireless communications method of radio communication with the mobile radio station of cutting apart, share Radio Resource.
Background technology
In GSM, voice communication is by one of service of frequent utilization.In recent years; In constructing the transmission path interface of GSM; Begin to adopt IP (Internet Protocol: Internet protocol) transmission path, and voice communication the networking telephone) etc. also (Voice over IP: Packet Service changes to VoIP from the past line-switching type.In addition, between radio zone, obtain the dedicated channel allocation mode that Radio Resource (channel resource) is back, keep institute's assigned radio resource, the common signal channel mode or the shared channel method of salary distribution that wireless resource utility efficiency is higher become main flow gradually.
Figure 25 is the figure of the explanation dedicated channel resource method of salary distribution.Show an example of using the W-CDMA mode in the drawings.In the dedicated channel resource method of salary distribution, Radio Resource 201～205 fixed allocation are given user A～E.In the dedicated channel resource method of salary distribution, user A～E can guarantee Radio Resource all the time after obtaining Radio Resource, and irrelevant with the bearer service that has shone upon data (Bearer Service) type.
Figure 26 is the figure of the explanation shared channel method of salary distribution.In the drawings, show use OFDM (Orthogonal Frequency Division Multiplexing: (the Orthogonal Frequency Division Multiplexing Access: example OFDM) of the OFDMA in mode OFDM).In the shared channel method of salary distribution, for example user A～F is distributed suitable Radio Resource 211～216 changeably according to wireless conditions etc.Therefore, in the shared channel method of salary distribution, Radio Resource can be cut apart, shared to the user.
In addition; Preferential reservation scheduling mode had been proposed in the past; Preferential reservation scheduling mode can to call voice such, priority is higher and can be according to the business of link information predictive mode, the scheduling of preengaging switch in advance is with guaranteed qos (for example with reference to patent documentation 1).
In addition, amount of calculation, the transmitted in packets control device that carries out the high-speed packet transmission process and the dispatching method thereof (for example with reference to patent documentation 2) of the grouping that is used to select the override transmission have also been proposed to cut down significantly.
In addition, in next generation mobile communication system,, no longer follow the dedicated channel resource method of salary distribution, and be that prerequisite is come the discussion scheme with the shared channel method of salary distribution in order effectively to utilize Radio Resource (improve frequency utilization efficient).
Patent documentation 1: No. 151703 communiques of TOHKEMY 2000 –
Patent documentation 2: No. 101637 communiques of TOHKEMY 2000 –
But, cut apart the user, share in the mode of Radio Resource, may not be all the time to needing user's distributing radio resource of Radio Resource, also there is not situation to its Resources allocation.Therefore, in the service that requires real-time that with the speech data is representative, there is the problem of having damaged data reliability.
Summary of the invention
The present invention In view of the foregoing accomplishes just, and its purpose is, the radio communication device and the wireless communications method that can under the situation of not damaging data reliability, carry out real time communication are provided.
To provide as shown in Figure 1 in the present invention in order addressing the above problem, to have carried out the radio communication device 1 of radio communication with the mobile radio station 2a～2c of shared Radio Resource; This radio communication device 1 is characterised in that; Have: communication judging unit 1a, it judges in from the communication request of mobile radio station 2a～2c and the communication setting information from epigyny device 3 whether include the real time communication solicited message; And Radio Resource guarantees unit 1b, and when including the real time communication solicited message in communication request and the communication setting information, this Radio Resource guarantees that unit 1b guarantees the Radio Resource to mobile radio station 2a～2c all the time or termly.
According to this radio communication device 1, when including the real time communication solicited message in from the communication request of mobile radio station 2a～2c and communication setting information, guarantee Radio Resource all the time or termly to mobile radio station 2a～2c from epigyny device 3.Thus, to the mobile radio station 2a～2c that carries out real time communication distributing radio resource all the time or termly.
In radio communication device of the present invention, to the mobile radio station that carries out real time communication distributing radio resource all the time or termly.Therefore, mobile radio station can carry out real time communication under the situation of not damaging data reliability.
The present invention provides a kind of wireless communication system; The mobile radio station that it comprises radio communication device and shares the Radio Resource be used for communicating with said radio communication device; It is characterized in that; Said radio communication device has: receiving element, and it receives from the communication request of said mobile radio station or from the communication condition of the epigyny device of said radio communication device; Radio Resource is guaranteed the unit, and it is according to said communication condition, till from user's exhalation request the time, beginning to cut off to communication during in or utilizing send permission specified during in guarantee to be directed against the said Radio Resource of said mobile radio station termly; And transmitting element, it utilizes the said Radio Resource of being guaranteed to send data to said travelling carriage, and said travelling carriage has the receiving element that receives said data.
The present invention provides the wireless communications method in a kind of wireless communication system; The mobile radio station that this wireless communication system comprises radio communication device and shares the Radio Resource be used for communicating with said radio communication device; This wireless communications method is characterised in that: said radio communication device receives from the communication request of said mobile radio station or from the communication condition of the epigyny device of said radio communication device; According to said communication condition; During till from user's exhalation request the time, beginning to cut off to communication or utilize send permission specified during in guarantee to be directed against the said Radio Resource of said mobile radio station termly; And utilizing the said Radio Resource of being guaranteed to send data to said travelling carriage, said travelling carriage receives said data.
Through the following explanation that is associated as the accompanying drawing of the preferred implementation of example of the present invention with expression, above-mentioned and other purpose, feature and advantage of the present invention become clearer and more definite.
Description of drawings
Fig. 1 is the figure that the summary of radio communication device is shown.
Fig. 2 is the figure that a part of structure example of GSM is shown.
Fig. 3 is the flow chart that the base station action is shown.
Fig. 4 is the figure that the allocation of radio resources state is confirmed in explanation.
Fig. 5 is the figure that idling-resource is guaranteed in explanation.
Fig. 6 is the figure of the explanation continuous resource method of salary distribution.
Fig. 7 is the figure of the explanation reserve resource method of salary distribution.
Fig. 8 is the figure of the periodic allocation of explanation Radio Resource.
Fig. 9 is the figure that an example of protocol stack is shown.
Figure 10 is the figure of one example of protocol stack when user face data being shown being speech data.
Figure 11 is that the figure to the example of the header of speech data is given in explanation.
Figure 12 be the figure cut apart of declarative data one of.
Figure 13 be the figure cut apart of declarative data two.
Figure 14 is the figure that the data combination processing of AMR is shown.
Figure 15 is that declarative data is cut apart the figure that combines processing.
Figure 16 illustrates not carry out the figure that data are cut apart the situation that combines processing.
Figure 17 is the precedence diagram of mobile radio station, base station and RNC.
Figure 18 is the precedence diagram of mobile radio station, base station and RNC.
Figure 19 is the functional block diagram of base station.
Figure 20 is the flow chart that the base station action when breathing out is shown.
Figure 21 is the flow chart of the base station action when incoming call is shown.
Figure 22 is the flow chart of the base station action when second calling and setting is shown.
Figure 23 is the flow chart of the base station action the when Radio Resource that obtains down link and up link is shown.
Figure 24 is the figure of explanation Radio Resource notice.
Figure 25 is the figure of the explanation dedicated channel resource method of salary distribution.
Figure 26 is the figure of the explanation shared channel method of salary distribution.
Label declaration
1, radio communication device; 1a, communication judging unit; 1b, Radio Resource are guaranteed the unit; 2a～2c, mobile radio station; 3, epigyny device.
Embodiment
Below, the principle that present invention will be described in detail with reference to the accompanying.
Fig. 1 is the figure that the summary of radio communication device is shown.Radio communication device 1 has communication judging unit 1a and Radio Resource is guaranteed unit 1b.Radio communication device 1 for example carries out radio communication based on the shared channel method of salary distribution with mobile radio station 2a～2c.Radio communication device 1 is connected with epigyny device 3.Epigyny device 3 control subordinates' radio communication device 1 and mobile radio station 2a～2c.
When including the real time communication solicited message in communication request and the communication setting information, Radio Resource guarantees that unit 1b guarantees the Radio Resource to mobile radio station 2a～2c all the time or termly.
For example, when containing the real time communication solicited message in the communication request from mobile radio station 2a, Radio Resource guarantees that unit 1b guarantees Radio Resource all the time or termly to mobile radio station 2a.Perhaps; From the communication setting information that epigyny device 3 sends, including under the situation of real time communication solicited message with channel for the user data of setting up between the mobile radio station; Radio Resource guarantees that unit 1b to mobile radio station 2a～2c, guarantees Radio Resource all the time or termly.
Like this, radio communication device is to carrying out the mobile radio station of real time communication, all the time or termly distributing radio resource.Thus, mobile radio station can carry out real time communication under the situation of not damaging data reliability.
Next, the execution mode that present invention will be described in detail with reference to the accompanying.
Fig. 2 is the figure that a part of structure example of GSM is shown.GSM shown in the figure is made up of RNC (radio network control apparatus) 11, base station 12,13 and mobile radio station 14～18.Wherein, there are a plurality of RNC, and at the upper epigyny device that also exists of each RNC.
In the common signal channel mode and the shared channel method of salary distribution, might not be all the time to the user's distributing radio resource that needs Radio Resource, also there is not situation to its Resources allocation.Therefore; Insert or FTP (File Transfer Protocol: in the packet communication that FTP) real-time such as download is lower in the Internet; Even in blink, be in the situation that can't obtain Radio Resource; Also only be take place to postpone download time and can not influence service, but in the service that requires real-time of speech data etc., damage data reliability sometimes.
Here, during to the high radio communication of base station 12,13 request real-times, base station 12,13 is guaranteed Radio Resource all the time or termly, and distributes the Radio Resource of being guaranteed to the mobile radio station of asking 14～18 at mobile radio station 14～18.In addition, under the situation of guaranteeing Radio Resource termly, adopt the mode of not damaging data reliability to guarantee Radio Resource termly.
In addition, when (grouping) carried out radio communication to bigger data, light was with the Radio Resource of being guaranteed, sometimes inadequate resource.In this case, base station 12,13 is divided into data and can utilizes the Radio Resource of being guaranteed to carry out the size of radio communication, and divided data is mapped on the Radio Resource of being guaranteed.In addition, under the data situation littler, be mapped on the Radio Resource in conjunction with a plurality of data, to improve the utilization of Radio Resource than Radio Resource.
Fig. 3 is the flow chart that the base station action is shown.The processing of carrying out according to following steps is carried out in base station 12.In addition, same processing is also carried out in base station 13, omits its explanation.
Request (request of breathing out) is set up from mobile radio station 14 receiving liness in [step S1] base station 12.
[step S2] base station 12 judges that the exhalation request from mobile radio station 14 is real time communication or non-realtime traffic.For example, at W-CDMA (Wideband Code Division Multiple Access: WCDMA) in the system etc., when breathing out request, will discern the identifier of asking communication type and send in being included in.Base station 12 for example judges that according to this identifier the request of exhalation is real time communication or non-realtime traffic.In the exhalation request from mobile radio station 14 is under the situation of real time communication, gets into step S3.Under the situation that is non-realtime traffic, base station 12 obtains Radio Resource according to certain common Radio Resource acquisition theory in the past, distributes to user's (mobile radio station 14).
Can [step S3] base station 12 judge and guarantee regularly that (below, comprise all the time) distributes to user's radio resource.Under the situation that can guarantee Radio Resource, get into step S5.Under the situation that can not guarantee Radio Resource, get into step S4.
[step S4] base station 12 is under the situation that can not guarantee Radio Resource, and the Radio Resource of the mobile radio station of non-realtime traffic is being carried out in adjustment, has guaranteed to ask the Radio Resource of the mobile radio station 14 of real time communication.For example, the base station 12 Radio Resource priority allocation that will carry out the mobile radio station of non-realtime traffic is given the mobile radio station asked real time communication.
[step S5] base station 12 obtains Radio Resource and distributes to mobile radio station 14.At this moment, the size of Radio Resource/at interval/frequency etc. can be distributed regularly, also can in the scope of parameter, be distributed changeably.
The Radio Resource that [step S6] base station 12 is obtained to mobile radio station 14 notices.
The total data length (data length of data+header) of the data on the Radio Resource is confirmed to be mapped in [step S7] base station 12.When total data length is in prescribed level (for example, A ﹤ total data length ﹤ B), base station 12 gets into step S9.When total data length is not in prescribed level, get into step S8.
When [step S8] surpassed prescribed level when total data length, the 12 pairs of data in base station were cut apart.When total data length during, carry out the combination of data less than prescribed level.In addition, about carrying out the unit that data combine, being not limited to only is a user's data, for example also can combine a plurality of users' DTX information (dumb data information: size of data is less) and sends.
The 12 pairs of data in [step S9] base station are carried out wireless transmission.In addition, even can guarantee Radio Resource continuously, but sometimes also can be owing to the state deteriorating of wireless communication line quality etc., and the situation that data are trapped in buffer takes place to send.In this case, base station 12 is according to the delay threshold value more than the certain hour, and data are sent in deletion from buffer.
Below, above-mentioned steps is elaborated.At first, with the ofdm system be the acquisition of the judgement that can guarantee Radio Resource, wireless resource allocation adjustment and the Radio Resource of example step S3～S5 that Fig. 3 is described.
As from the exhalation request of the real time communication of mobile radio station the time, the wireless resource allocation situation (A) that base station 12 is confirmed in these machines.If idle Radio Resource is arranged, the allocation of radio resources that then base station 12 should the free time is given the mobile radio station of the exhalation request of having carried out real time communication.If there is not idle Radio Resource, the branch that then for example changes the lower mobile radio station of the mobile radio station isopreference level that carrying out non-realtime traffic is equipped with guarantees idling-resource, then allocation of radio resources is given the mobile radio station (B) of the exhalation request of having carried out real time communication.Affirmation to the allocation of radio resources state of (A) describes.
Fig. 4 is the figure that the allocation of radio resources state is confirmed in explanation.Base station 12 for example has RRM table as shown in the figure in storage devices such as memory.User #1～#4 among the figure representes mobile radio station, the unallocated user's of giving of idle expression (not using) Radio Resource (Resource Block).In addition, the NRT among the figure representes that the user carries out non-realtime traffic, and RT representes that the user carries out real time communication.
In embodiment illustrated, can know, to the resource block assignments of time band T1, frequency band f1 carry out the user #1 of non-realtime traffic.In addition, can know to the resource block assignments of time band T2, frequency band f4～f10 the user #3 that carries out real time communication.In addition, can be with the Resource Block of T3, frequency band f1 the knowledge time is idle Resource Block.
For example, in time band T2, as from user's exhalation request the time, base station 12 judges that the Resource Block of frequency band f1～f3 is an idle condition, judges that the Resource Block of frequency band f4～f10 is in user mode.In addition, in time band T4, as from user's exhalation request the time, judge that the Resource Block of frequency band f1～f10 is in user mode.
Like this, as from the exhalation request of mobile radio station the time, the wireless resource allocation state is confirmed with reference to the RRM table in base station 12.
The idling-resource of (B) is guaranteed to describe.
Fig. 5 is the figure that idling-resource is guaranteed in explanation.RRM table 21 when showing the exhalation request that the user # 5 that makes a fresh start is arranged in the drawings in time band T4 and RRM table 22 after this.
When the exhalation request of the real time communication that the user # 5 that makes a fresh start is arranged among the time band T4, the allocation situation of Resource Block is confirmed in base station 12 in order to ensure Resource Block.Under the situation of illustrative example, shown in RRM table 21, the user #1 of non-realtime traffic has asked the Resource Block of frequency band f1～f5, and the user #3 of real time communication has asked the Resource Block of frequency band f6～f10, does not therefore have idle Resource Block.
In this case, shown in RRM table 22, base station 12 will ask the Resource Block priority allocation of time band T5, T6, frequency band f1 of user #1 of the non-realtime traffic of frequency band f1～f5 to be given to have carried out real time communication requesting users # 5.
That is, the Resource Block priority allocation of the user #1 of non-realtime traffic is given the user # 5 of the communication request of having carried out real time communication in base station 12.This is because slightly delay can not have problems in non-realtime traffic (the Internet or mail etc.).
Next, the wireless resource allocation mode that is obtained is described.
Fig. 6 is the figure of the explanation continuous resource method of salary distribution.In the continuous resource method of salary distribution, base station 12 is under the situation of real time communication being judged as the user's communications type of having carried out communication request, when carrying out the resource block assignments judgement, judges the allocation situation of idling-resource piece at every turn, and priority allocation is given this user.
For example, shown in arrow 23～26, T5～T7 is being with to the time in base station 12 ..., when Tn carries out the resource allocation judgement respectively, judge the situation of idling-resource piece, Resource Block (being frequency band f1 among the figure) is distributed to and carried out real time communication requesting users # 5.
In addition, because the distribution state of idling-resource piece all can be judged in base station 12 when the distribution of carrying out Resource Block is judged at every turn, therefore as shown in the figure, Resource Block is not to be fixed in frequency band 1.For example also there is such situation: when the Resource Block of other frequency bands is idle, give user # 5 with this resource block assignments.
Fig. 7 is the figure of the explanation reserve resource method of salary distribution.In the reserve resource method of salary distribution; Guaranteeing of Resource Block implemented in base station 12 when the user breathes out request; The Resource Block of the frequency band guaranteed is carried out priority allocation afterwards always, up to communication cut off (thereby because the handover base station resource of cutting off calling or mobile radio station obtain discharging) or by after the Grant appointment stated during till.
For example, though not shown, but among the time band T4 before time band T5, new user # 5 has carried out the communication request of real time communication.In this case, as shown in arrow 27, when base station 12 is judged in the resource allocation of the time of carrying out band T5, give user # 5 with the resource block assignments of frequency band f1.After this, base station 12 is the Resource Block of priority allocation frequency band f1 always, till the communication of user # 5 is cut off.
Next, explain the wireless resource allocation cycle.Explained above Radio Resource has been distributed to the exhalation requesting users of having carried out real time communication continuously.But, in order to improve the Radio Resource utilization ratio, can also be termly to user's distributing radio resource.
Fig. 8 is the figure of the periodic allocation of explanation Radio Resource.As shown in the figure, to the exhalation requesting users # 5 that has carried out real time communication, distributing radio resource termly.For example, as shown in the figure, wireless resource allocation is made as at interval every at a distance from one.This periodic allocation for example can be utilized parameter to wait at interval and set, and also can be set at according to the characteristic of real time communication whenever at a distance from 2, every at a distance from 3.
The data dividing processing (segmentation) of the step S8 of key diagram 3.At first, protocol stack between RNC 11, base station 12,13 and the mobile radio station 14～18 is described.
Fig. 9 is the figure that an example of protocol stack is shown.RNC11, base station 12,13 and mobile radio station 14～18 communicate according to agreement as shown in the figure.
Figure 10 is the figure of one example of protocol stack when user face data being shown being speech data.As shown in the figure, AMR (Adaptive Multi Rate: AMR) be defined as the agreement of upper, between mobile radio station 14～18 and RNC 11, adopted the form of under the control of the low layer below the IP, sending reception.
Speech data for example is to carry out data the cycle to send with 20ms on the AMR Resource Block.The radio layer that receives these data is implemented the processing of each layer, for example sends according to every millisecond of 2 * subframe.
Usually, for the data communication (the MAX bit Rate value (except the W-AMR) on the AMR codec) of the 12.2kbps of AMR, in 20ms, for example need the data area of 32 bytes.Therefore, need guarantee Radio Resource, can the speech data of at least 32 bytes being carried out radio communication.But, according to the difference of giving to the header information of VoIP (AMR), the not enough situation of Radio Resource can take place.
Figure 11 is that the figure to the example of the header of speech data is given in explanation.As shown in the figure, given the header 32 of RTP/UDP/IPv6 to AMR (speech data) 31.
Can (Packet Data Convergence Protocol: PDCP) header-compressed be carried out header-compressed to header 32 through PDCP.Size after header 32 compressions is 1～3 byte, and the total data length of the header 33 after AMR 31 and the compression is 33～35 bytes.
On the other hand, when the RTP of header 32 header is IR (Initialization and Refresh: initialization refreshes) header, can not carry out the PDCP header-compressed, therefore shown in header 34, header 32 is not compressed.
That is, different according to the content of the RTP header of header 32, the not enough situation of being guaranteed of Radio Resource can take place.
Therefore, base station 12 is carried out data and is cut apart, and makes total data length in any case can both carry out radio communication, afterwards divided data is mapped on the Radio Resource.
Figure 12 be the figure cut apart of declarative data one of.Show the AMR 41a～41c that carries out wireless transmission in the drawings.The RTP header of AMR 41a is the IR header, can not carry out the header-compressed based on the PDCP header- compressed.AMR 41b, 41c then can carry out the header-compressed based on the PDCP header-compressed.In addition, through header-compressed, as shown in the figurely header compression 43a, 43b have been given to AMR 41b, 41c.
Because AMR 41a can not carry out header-compressed, so the header 42 that compresses that has been endowed as shown in the figure.The size of the RTP header of header 42 is 60 bytes, so the total data length of AMR 41a and header 42 very big (because also given UDP/IPv6 header, so at least greater than 92 bytes (60 bytes of 32 bytes of AMR+RTP)).
Therefore, the header that compresses 42 of the 12 couples of AMR 41a in base station is cut apart, and it is appended on the header of the AMR 43a that carried out header-compressed, 43b.
For example, as shown in the figure, base station 12 is divided into 3 parts with the header 42 of AMR 41a, is made as and cuts apart header information 42a～42c.Then, to AMR 41a additional partition header information 42a, to AMR 41b additional partition header information 42b, to AMR 41c additional partition header information 42c.
In addition, the total data length of the AMR+RTP/UDP/IPv6 header after handle to the PDCP header-compressed base station 12 surpasses the data of prescribed level, carries out above-mentioned header dividing processing.For example, handle the data that the back total data length surpasses 35 bytes, carry out above-mentioned header dividing processing to header-compressed.That is, the 12 pairs of headers that can not carry out the data of PDCP header-compressed in base station are cut apart.
Like this, the 12 pairs of bigger headers in base station are cut apart, and add and have carried out the AMR of header-compressed to other.Thus, suppressed to carry out the difference on the size of data of radio communication, having prevented can't be with the situation of data map to the Radio Resource of being guaranteed.
In addition, need not prepare the bigger Radio Resource of Resource Block in advance and deal with bigger header, can improve the service efficiency of Radio Resource.
Figure 13 be the figure cut apart of declarative data two.Show AMR 51 in the drawings.The RTP header of AMR 51 is the IR header, can not carry out the header-compressed based on the PDCP header-compressed.Therefore as shown in the figure, on AMR 51, added the header 52 that compresses.
Like this, the AMR data of 12 pairs of base stations with non-header compression are cut apart and radio communication.Thus, suppressed to carry out the difference on the size of data of radio communication, having restrained can't be with the situation of data map to the Radio Resource of being guaranteed.
The data of the step S8 of key diagram 3 combine to handle (concatenation).Data combine to be meant plural data are combined.For example, if size of data is 10 bytes, then can combine three data.Therefore, can change the number of the data that will combine according to the size of resource.In addition, base station 12 can also combine the data of different user.
And the caller can not carry out session all the time constantly, also has silent state.In AMR, when not having speech data, send data (SID (the Silence Descriptor: silence descriptor) data) of expression silent state.The SID data are about 10 bytes, less than 32 bytes of AMR.Base station 12 also can combine them when sending data little as the SID data.For example, base station 12 combines a plurality of SID as RLC PDU, and is mapped on the Radio Resource and sends.Like this, to the less data of size, can be through combining to send the raising data transmission efficiency.
As stated, having carried out data to RLC SDU (AMR data or SID data) combines to handle.
Figure 14 is the figure that the data combination processing of AMR is shown.Show these three RLC SDU (Service DataUnit: service data unit) of AMR 61a～63a and header compression (PDCP header) 61b～63b in the drawings.Base station 12 for example combines these three RLC SDU, and generating to the unit that Resource Block shines upon is RLC PDU (Protocol Data Unit: protocol Data Unit) 64.
Then, combine to handle cutting apart of declarative data.Figure 15 is that declarative data is cut apart the figure that combines processing.Show AMR voice situation occurred and allocation of radio resources situation in the drawings.Situation occurred and the size thereof of representing AMR to the column shown in the AMR voice situation occurred.AMR 71 is the AMR with the IR header about 100 bytes.AMR 72a～72c is the AMR that has been endowed about 35 bytes of header compression.SID data 73 are the SID data about 10 bytes.
Column to shown in the allocation of radio resources situation is represented Radio Resource and size thereof.The size of Radio Resource is greater than the AMR 72a～72c that has been endowed header compression (roughly greater than 35 bytes).
The size of AMR 71 is greater than the size of a Radio Resource.Therefore, AMR 71 is for example cut apart according to that kind shown in the Radio Resource 74 in base station 12, and shines upon.
On the other hand, as previously mentioned, the size of a Radio Resource is bigger than the size of the AMR 72a～72c with header compression.Therefore, base station 12 is according to that kind shown in the Radio Resource 75～77, AMR 72a～72c cut apart combine to handle and shine upon.Base station 12 is mapped to SID data 73 on the Radio Resource 78.Certainly, also can, the SID data shine upon after being combined as previously mentioned.
When not having to be mapped to the data on the Radio Resource, base station 12 also can be like Radio Resource 79, discharge shown in 80.
In addition, relative with Figure 15, in ensuing Figure 16, illustrated and do not carried out data and cut apart the example when combine handling.Figure 16 illustrates not carry out the figure that data are cut apart the situation that combines processing.In the drawings, give identical label, and omit its explanation the parts identical with Figure 15.
In Figure 16, the size of Radio Resource is identical with the AMR 72a～72c that has been endowed header compression.Therefore in this case, shown in Radio Resource 91～93, combination is not cut apart to AMR 72a～72c in base station 12, but shines upon accordingly with Radio Resource 91～93 respectively.
In addition, the dividing processing of illustrated data and the RLC PDUSegmentation function and the RLC SDU Concatenation function that combine processing corresponding to the 3G system above.
The data of the step S9 of key diagram 3 are sent.Based on the service of the shared channel method of salary distribution (among the HSPA (High Speed Packet Access: high-speed packet inserts)/LTE (Long Term Evolution: Long Term Evolution) system etc.); If to the Radio Resource mapping (enum) data time, be in the not good state of the quality of reception, then can not carry out data and send.In this case, data are trapped in the buffer, and data are waited for always before the triggering that can impel transmission is arranged.
But, for the real-time higher data,, can not become significant data even buffering surpasses certain hour yet.For example for speech data etc., keep voice in the past meaningless.
Therefore, base station 12 has and abandons (Discard) function and timer, to abandon the hash (delayed data) of infringement real-time.
For example, the timing information (for example abandoning the time of data) of certain hour is given according to the order of the data that will send to mobile radio station in base station 12.Then, base station 12 abandons these data that are stored in the buffer according to the timing information of data when abandoning the time (for example data surpassed).Thus, begin to abandon from legacy data.
Perhaps, base station 12 is at FIFO (First In First Out: first in first out) in the buffer of mode threshold value is set.When data are stored above threshold value, begin to abandon from legacy data.
Like this, buffer can effectively utilized through abandoning data in base station 12.And because base station 12 is to begin to abandon from legacy data, therefore nearest data are maintained, and the reproducibility of real time communication improves.
Next, the order of mobile radio station, base station and RNC is described.
Figure 17, the 18th, the precedence diagram of mobile radio station, base station and RNC.Mobile radio station, base station and RNC carry out the processing of carrying out according to following steps.
[step S11] mobile radio station is to the base station request of breathing out.
The schedule information that is used for the mobile radio station exchange of control information is sent in [step S12] base station receive the request of exhalation from mobile radio station after.
[step S13] mobile radio station carries out circuit to the base station and sets request.In circuit setting request, include the communication type that mobile radio station is asked.
[step S14] base station obtains from the circuit of mobile radio station and sets the communication type that comprises in the request.
Whether the communication type that [step S15] base station judges is obtained is the type of requirement real time communication.When communication type is when requiring the type of real time communication, get into step S16.When communication type is when requiring the type of non-realtime traffic, carry out common allocation of radio resources and handle.
Request is set to the circuit that RNC is used for exchange of control information in [step S16] base station.
[step S17] RNC response is set request from the circuit of base station.
Can [step S18] base station judges guarantee Radio Resource.When being judged as to guarantee Radio Resource the time, get into step S20.When being judged as to guarantee Radio Resource the time, get into step S19.
The wireless resource allocation adjustment is carried out in [step S19] base station.For example, the Radio Resource priority allocation of the mobile radio station that carries out non-realtime traffic is given the mobile radio station of the communication request of having carried out real time communication.
The Radio Resource of mobile radio station of the communication request of real time communication is guaranteed to have carried out in [step S20] base station.
[step S21] base station is carried out circuit to mobile radio station and is set indication.Set the content that for example is included in the Radio Resource of guaranteeing among the step S20 in the indication at circuit.
[step S22] mobile radio station carries out circuit to the base station and sets the response that finishes.
Whether [step S23] base station judges total data length (the for example total data length of AMR+RTP/UPD/IPv6 header) is in prescribed level.For example, judge that whether total data length is more than or equal to 15 bytes and smaller or equal to 35 bytes.If in prescribed level, then get into step S24, S25.If not in prescribed level, then get into step S26.
Speech data is sent in [step S24, S25] base station.
[step S26] base station carries out combining to handle cutting apart of data.For example, if total data length greater than 35 bytes then carry out the data dividing processing.If total data length is less than 15 bytes then carry out data and combine to handle.
The speech data after having carried out cutting apart or combine to handle is sent in [step S27, S28] base station.Under the situation that is partition data, for example send with the fixed intervals of 20ms.
Figure 19 is the functional block diagram of base station.The base station has radio control section 100, radio section 110 and outdoor reception amplifier 120.
Department of resource management 101 carries out the processing of explanation in Fig. 3,17,18.Buffer 102 is temporary transient storage devices of preserving the data of sending to mobile radio station.In buffer 102,, data begin to abandon from legacy data if being detained certain hour.
Radio section 110 has interface portion 111, radio receiving and transmitting part 112 and transmit amplifier 113.Interface portion 111 is carried out exchanges data with radio section 110.Radio receiving and transmitting part 112 receives from the data of outdoor reception amplifier 120 outputs to the data of transmit amplifier 113 outputs will carrying out to mobile radio station wireless transmission.Transmit amplifier 113 amplifies data from wireless transmission to mobile radio station that will carry out.
Like this, even in the data communication that requires real-time, the Radio Resource of mobile radio station also can be guaranteed in the base station, not damage its real-time (conveniences of voice communication etc.).In addition, utilization ratio of wireless resources has been improved through the processing of cutting apart/combine of data in base station 12.In addition, buffer and utilization ratio of wireless resources have been improved through abandoning useless data (delayed data).And thus; Even adopted next generation mobile communication network etc., be called the network configuration that does not need the line-switching type service of ALL IP Network (complete IP network), still can under the prerequisite of not damaging convenience, realize the high data communication such as voice communication of real-time.
In addition,, situation about being carried out by the base station has been described, but also can in RNC, have been carried out same processing about above-mentioned processing.In addition, above-mentioned processing is applicable to W-CDMA system and Wireless LAN system.
In addition, in above-mentioned, the judgement of real time communication is carried out according to send the identifier that comprises when asking of breathing out from mobile radio station in the base station.But; The base station also can according to from aGW (access GateWay: IAD) or CN (CoreNetwork: core network) device etc. judges as the circuit set information of the network node of epigyny device whether the communication request of mobile radio station is real time communication.Below, use flow chart to describe.
Figure 20 is the flow chart that the base station action when breathing out is shown.
[step S31] base station receives the exhalation request from mobile radio station.
RRC (Radio Resource Control: Radio Resource control) circuit is set up in [step S32] base station.That is, the channel that control information is used is set up in the base station.At this moment, for example send the information that voice communication is carried out in expression hope from this base station of mobile station via to aGW.Perhaps, for example send the information that voice communication is carried out in expression hope from this base station of mobile station via and RNC to the CN device.
SAE is carried out in [step S33] base station, and (System Architecture Evolution: System Architecture Evolution) Bearer (carrying) sets.That is, the channel that user data is used is set up in the base station.At this moment, send the information of the real time communication of mobile radio station from aGW.Perhaps, send the real time communication of mobile radio station from the CN device via RNC.
Particularly, the base station with the negotiation of aGW in, be apprised of final Qos (the Quality of Service: service quality) information that confirms.Perhaps, with the negotiation of CN in, be apprised of the final Qos information of confirming via RNC.
In Qos information, include and represent that the user data that exchanges is the information of speech data (real time communication) etc., the judgement of real time communication is carried out according to this Qos information in the base station.
[step S34] base station is according to judging from the information of network node whether the communication of mobile radio station is real time communication.For example, judge (whether Qos information representes speech data) according to aforesaid Qos information.When with mobile radio station between communicate by letter when being real time communication, get into the step S3 of Fig. 3, below carry out the step process of Fig. 3.When with mobile radio station between communicate by letter when not being real time communication, carry out common allocation process.
Like this, the base station can be carried out the judgement of the real time communication of mobile radio station according to the information of sending from network node when setting up the channel that user data uses.
Figure 21 is the flow chart of the base station action when incoming call is shown.The base station is from network (mobile radio station of call-side) when receiving the incoming call request, according to following steps judge and the mobile radio station of receiver side between the real time communication of radio communication.
[step S41] base station receives the incoming call request of automatic network.
[step S42] is identical with the step S32 of Figure 20, and the RRC circuit is set up in the base station.
[step S43] is identical with the step S33 of Figure 20, and the base station is carried out SAE Bearer and set.At this moment, from the Qos information that network node has sent user data, the judgement of real time communication is carried out according to this Qos information in the base station.
[step S44] is identical with the step S34 of Figure 20, and the base station judges according to the information from network node whether the communication of mobile radio station is real time communication.When with mobile radio station between communicate by letter when being real time communication, get into the step S3 of Fig. 3, below carry out the processing identical with step process shown in Figure 3.When with mobile radio station between communicate by letter when not being real time communication, carry out common allocation process.
Like this, the base station can be carried out the judgement of the real time communication of mobile radio station according to the information of sending from network node when setting up the channel that user data uses.
Figure 22 is the flow chart of the base station action when second calling and setting is shown.Under the situation of carrying out second calling and setting (for example, the incoming call when mobile radio station is carrying out the Internet access etc.), the base station is according to the real time communication of the radio communication between following steps judgement and the incoming call side.
[step S51] base station receives the incoming call request of automatic network.
[step S52] is identical with the step S33 of Figure 20, and the base station receives the information of sending from network node, judges whether to carry out real time communication (RT/NRT judgement) according to this information.When with mobile radio station between communicate by letter when being real time communication, get into step S53.When with mobile radio station between communicate by letter when not being real time communication, carry out common allocation process.
[step S53] is identical with the step S3 of Fig. 3, and can base station judges guarantee the Radio Resource to the mobile radio station periodic allocation.In the time Radio Resource being guaranteed, get into step S55.In the time Radio Resource can not being guaranteed, get into step S54.
[step S54] base station is in the time can not guaranteeing Radio Resource, and the Radio Resource of mobile radio station of non-realtime traffic is being carried out in adjustment, for example guarantees the current Radio Resource as the mobile radio station of incoming call side of the Internet in inserting that be in.
Radio Resource is guaranteed in [step S55] base station, resets SAE Bearer.That is, base station rebulids the channel that the user data of mobile radio station is used.Below, the step S6 of entering Fig. 3 carries out the processing identical with Fig. 3.
Like this, even under the situation of carrying out second calling and setting, the base station also can be carried out the judgement of the real time communication of mobile radio station according to the information of sending from network node.
In addition, the base station can be guaranteed the Radio Resource that Radio Resource that down link is used and up link are used respectively.
Figure 23 is the flow chart of the base station action the when Radio Resource that obtains down link and up link is shown.
[step S61]～[step S64] is identical with step S31～S34 of Figure 20, omits its explanation.
Can [step S65] base station judges guarantee that periodic allocation gives Radio Resource mobile radio station, in the down link.When the Radio Resource that can guarantee in the down link, get into step S67.When the Radio Resource that can not guarantee in the down link, get into step S66.
[step S66] base station is when the Radio Resource that can not guarantee in the down link, and the Radio Resource of the mobile radio station of non-realtime traffic is being carried out in adjustment, has guaranteed to carry out the Radio Resource of the mobile radio station of real time communication request.
[step S67] base station obtains the Radio Resource in the down link, distributes to mobile radio station.
Can [step S68] base station judges guarantee that periodic allocation gives Radio Resource mobile radio station, in the up link.When the Radio Resource that can guarantee in the up link, get into step S70.When the Radio Resource that can not guarantee in the up link, get into step S69.
[step S69] base station is when the Radio Resource that can not guarantee in the up link, and the Radio Resource of the mobile radio station of non-realtime traffic is being carried out in adjustment, has guaranteed to carry out the Radio Resource of the mobile radio station of real time communication request.
[step S70] base station obtains the Radio Resource in the up link, distributes to mobile radio station.
[step S71]～[step S74] is identical with step S6～S9 of Fig. 3, omits its explanation.
In addition, in step S71, Radio Resource in the mobile radio station informing uplink and the Radio Resource in the down link.
For example carry out according to following steps when the Radio Resource in the mobile radio station informing uplink base station.The Grant resource of distributing up link to use to mobile radio station is called out to each in the base station.Then, and base station use L (Layer: layer) 1/L2 message or RRC message (layer 3 message), termly to terminal notice Grant resource information.In this Grant resource information, include the information of distributing to Radio Resource mobile radio station, in the up link.
Mobile radio station can be understood position (for example frequency), size and the term of validity of spendable Radio Resource according to the Grant resource information that receives.
During end of conversation, use the release of L1/L2 message or RRC message to mobile radio station notice Grant resource.
For example carry out according to following steps when the Radio Resource in mobile radio station notice down link the base station.The descending position and the size with Radio Resource of distributing termly during fixing called out to each in the base station.Use L1/L2 message or the RRC message wireless resource information after the terminal notice is distributed termly.
Mobile radio station is at the pending datas such as position based on the information of reception.
During end of conversation, use the release of L1/L2 message or RRC message to mobile radio station notice Radio Resource.
Figure 24 is the figure of explanation Radio Resource notice.As previously mentioned, the base station is included in the Radio Resource that obtains in the Grant resource information, notifies to mobile radio station.Base station 12 can be notified the Radio Resource that is obtained termly, also can utilize Event triggered (timing of each resource allocation) to notify.
Simply show principle of the present invention above.In addition; Those skilled in the art can carry out various deformation and change; The accurate structure and the application examples that illustrate above the invention is not restricted to and explain, variation that all are corresponding and equivalent all fall in the scope of the present invention based on accompanying claims and equivalent thereof.
Claims (10)
1. wireless communication system, the mobile radio station that it comprises radio communication device and shares the Radio Resource that is used for communicating with said radio communication device is characterized in that,
Said radio communication device has:
Receiving element, it receives from the communication request of said mobile radio station or from the communication condition of the epigyny device of said radio communication device;
Radio Resource is guaranteed the unit, and it is according to said communication condition, till from user's exhalation request the time, beginning to cut off to communication during in or utilizing send permission specified during in guarantee to be directed against the said Radio Resource of said mobile radio station termly; And
Transmitting element, it utilizes the said Radio Resource of being guaranteed to send data to said travelling carriage,
Said travelling carriage has the receiving element that receives said data.
2. wireless communication system according to claim 1; It is characterized in that; Said radio communication device has data and cuts apart combining unit, and these data are cut apart combining unit according to the data length that is mapped to the data on the said Radio Resource, and said data are cut apart and combined.
3. wireless communication system according to claim 2 is characterized in that, during greater than prescribed level, said data are cut apart the header that combining unit is cut apart said data at the data length of said data.
4. wireless communication system according to claim 3 is characterized in that, the said header after said data are cut apart combining unit and will be cut apart appends on other the said data of the header compression that has after the compression.
5. wireless communication system according to claim 2; It is characterized in that; During less than prescribed level, said data are cut apart combining unit other the said data or the said data of other said mobile radio station are attached in the idling-resource of said Radio Resource at the data length of said data.
6. wireless communication system according to claim 1; It is characterized in that; When not having idle said Radio Resource; Said Radio Resource guarantees that the unit will distribute to the said Radio Resource of the said mobile radio station that carries out non-realtime traffic, distributes to the said mobile radio station of the communication request of having carried out real time communication.
7. wireless communication system according to claim 1 is characterized in that, said radio communication device has:
Timing unit, it gives timing information according to the order of the data that will send to said mobile radio station; And
The data discarding unit, its said timing information according to said data abandons said data.
8. wireless communication system according to claim 1 is characterized in that, said radio communication device has:
Buffer, its temporary transient preservation will be to the data of said mobile radio station transmission; And
The data discarding unit, when the maintenance dose of the said data of said buffer surpassed setting, the old said data of this data discarding unit from be stored in said buffer began to abandon.
9. wireless communication system according to claim 1 is characterized in that, said Radio Resource guarantees that the unit guarantees said Radio Resource and the said Radio Resource in the up link in the down link all the time or termly.
10. the mobile radio station that the wireless communications method in the wireless communication system, this wireless communication system comprise radio communication device and share the Radio Resource that is used for communicating with said radio communication device, this wireless communications method is characterised in that:
Said radio communication device receives from the communication request of said mobile radio station or from the communication condition of the epigyny device of said radio communication device,
According to said communication condition, till from user's exhalation request the time, beginning to cut off to communication during in or utilize send permission specified during in guarantee to be directed against the said Radio Resource of said mobile radio station termly, and
Utilize the said Radio Resource of being guaranteed to send data to said travelling carriage,
Said travelling carriage receives said data.
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| CN107005530A (en) * | 2014-09-22 | 2017-08-01 | 诺基亚通信公司 | Muted calls detection in communications network system |
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